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Lubricating oil composition for piston type air compressor

A kind of lubricating oil composition, air compressor technology, applied in the field of lubricating oil composition, piston air compressor lubricating oil composition field, can solve the problem of not involving the application of ionic liquid additive composition, etc., achieve good compatibility And synergistic effect, excellent high temperature stability, good stability effect

Active Publication Date: 2021-10-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] None of the above patents involves the application of ionic liquid additive compositions in piston air compressor oil, and there are no related reports in other literatures

Method used

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  • Lubricating oil composition for piston type air compressor
  • Lubricating oil composition for piston type air compressor
  • Lubricating oil composition for piston type air compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The composition of the piston air compressor lubricating oil composition is shown in Table 1, wherein the dosage of thiazole phosphate ionic liquid is 0.5wt%.

[0079] Table 1

[0080]

[0081]

[0082] The lubricating oil compounded according to the components and their contents shown in Table 1 was subjected to a high-temperature coking plate test. The test conditions were as follows: short-term contact between heated lubricating oil (oil temperature 100°C) and high-temperature (310-320°C) aluminum plate Tendency to coke. After the high temperature coke plate test, the appearance is as follows: figure 1 shown.

Embodiment 2

[0084] The difference from Example 1 lies in: the components and contents of the lubricating oil composition are shown in Table 2 for details. After the high temperature coke plate test, the appearance is as follows: figure 2 shown.

[0085] Table 2

[0086]

[0087]

Embodiment 3

[0089] The difference from Example 1 lies in: the components and contents of the lubricating oil composition are shown in Table 3 for details.

[0090] table 3

[0091]

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PUM

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Abstract

The invention relates to a lubricating oil composition for a piston type air compressor. The composition comprises the following components: 0.5-3wt% of an antioxidant, 0.1-0.5wt% of ionic liquid, 0.03-0.06wt% of a metal deactivator, 0.03-0.06wt% of an anti-rust agent, 0.01-0.02wt% of a demulsifier, 0.01-0.02wt% of an anti-foaming agent and the balance of base oil, wherein the ionic liquid is thiazole phosphoric acid ionic liquid, and the addition amount of the ionic liquid is 0.1-0.5wt%. A novel ionic liquid compound system is adopted, excellent high-temperature stability and oxidation resistance are shown, the oil temperature can be effectively controlled, and carbon deposit generation is reduced. The metal deactivator, the anti-rust agent, the demulsifier, the defoaming agent and the like are screened, the additives show good compatibility and a synergistic effect, the performance is excellent, and the harsh working condition requirements of modern piston type air compressor equipment can be met.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil and lubricating oil additives, and relates to a lubricating oil composition, in particular to a lubricating oil composition of a piston air compressor. Background technique [0002] Piston air compressors have the advantages of wide pressure range, strong adaptability, high operating efficiency, and good economy. They are widely used in petrochemical enterprises such as fertilizer and ethylene production and large ships. At present, due to production needs, parameters such as discharge pressure and temperature of piston air compressors have been further improved. In order to ensure the safe operation of equipment, original equipment manufacturers (OEMs) have put forward higher requirements for piston air compressor lubricating oil. [0003] Patent CN 107304380A discloses an air compressor oil composition, which uses mineral or synthetic base oil, and uses an anti-oxidation and anti-wear mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/08C10N30/10C10N30/12C10N30/18C10N40/30
CPCC10M169/048C10M2219/104C10M2223/043C10M2215/223C10M2219/106C10M2215/065C10M2207/123C10M2207/288C10M2209/104C10M2209/108C10M2207/2855C10M2209/105
Inventor 刘中国朱江王辉
Owner PETROCHINA CO LTD
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